Radiator



C. S. ANDERSON.

RADIATOR.

APPLICATION FILED MAY 9. 1918.

1 27,797, v Patented Jan. 13, 1920.

YNVENTOF! ATTORNEY CLARENCE S. ANDERSON, OF LAKE GENEVA, WISCONSIN.

RADIATOR;

Specification of Letters Patent.

Patented J an. 13, 1920.

Application filed May 9, 1918. Serial No. 238,521.

To all whom it may concern:

Be it known that I, CLARENCE S. ANDER- SON, a citizen of the United States, residing at Lake Geneva, in the county of Walworth and State of W sconsin, have invented certain newand useful Improvements in Radiators, of which the following is a specification.

This invention has relation to radiators for motor vehicles, and the nature and objects thereof will be readily apparent to those skilled in the art to which it appertains in the light of the following explanaforms and arrangementsthereof within the.

. spirit of the invention or the scope of the ap ended claim.

object of the invention is to provide an improved radiator of the tubular type embodying tubes of a novel constructlon de-- signed to insure the rapid cooling of the water or other fluid during its passage through the radiator.

Another object of the invention is to provide an improved radiator for motor vehicles of the tubular type in which the tubes are provided with a plurality of external projections or ribs designed to facilitate the conduction of heat from the radiator tubes.

A still further object of the invention is to provide an improved radiator for motor vehicles of :the tubular type 1n whichthe tubes are formed in a novel manner with a view to permitting easy repair in the event of inju to the radiator and at same tlme to permit the radiator tubes to be initially,

constructed at a greatly reduced cost.

A still further object of the invention is to provide a radiator tube of a novel construction for radiators of motor vehicles designed to permit the expansion to some extent of water in the event that the water congeals during periods of low temperature so as to prevent the disruption of the tubes and consequently prevent the leakage of the radiator at any point.

In addition to the foregoing my invention comprehends improvements in the detalls of construction and arrangement of the correlative parts to be hereinafter more fully described and particularly set forth 1n the appended claim.

In the accompanying drawings in which similar and corresponding parts are designated by the same characters of references throughout the several views in which they appear Figure 1, is a fragmentary view in front elevation of a portion of a radiator embodymg my improved radiator tube.

Fig. 2, is a view, partly in side elevation and partly in section of one of the tubes. Y Fig. 3, 1s a view in vertical section taken on the line 33 of Fig. 2, and

Fig. 4', is a horizontal section.

Fig. 5 is a detail perspective view of a poi-tion of one of the side closures of the u es.

With reference to Fig. '1 of the drawings,

10 indicates a plurality of radiator tubes, preferably disposed in parallelism and in vertical position to connect the upper chamber or header 11 of the radiator-with the lower chamber (notIshown). Since. the construction of tubular radiators is well known a further exposition of the principles embodied therein is not thought necessary in this application. Suifice to ,say'that-my improvement consists of a new construction .of a radiator tube, the same being shown in detail in Figs. 2, 3 and 4. Each radiator tube is formed of a pair of metallic strips- 11 and 12. These strips are bent at uniformly spaced points throughout their length to form outwardly extending portions 13, defining ribs upon the outer surface of the tube and pockets 14 communicating with the interior of thetube. The ribs 13 are formed in such a manner as to present a slightl inclined surface relative to the horizonta,

the ribs at one side of the tube being inclined oppositely those at the other side. The vertical portions of the strips are dis.- posed 1n spaced relation by means of vertical strips 15 at the forward and rear ed es of the tubes said strips 15 being bent dou le as shownand their rounded ed es directed outwardly. The joint between t e strips 15 andthe strips 11 and 12 may be closed by means of soldering in the usual manner. As

' shown in Fig. 5 the strips 15 may be cut away at points to form oppositely extending fingers 16, located at proper points to; form closures for the ends of the pockets '14, a tight joint being effected by means of soldering. It will be obvious, however, that the ends of the pockets may be closed by means of end plates which may be formed separately from the strips 15 if desired.

It will be obvious in use, that during the passage of the water downward through the tubes the Water may flow in and out of the pockets 14:, and from a pocket at one side J of the tube to a pocket on the other side,

the pockets having an effect to slightly retard the flow of water to insure its cooling before entrance into the water jacket of the engine. The provision of the ribs 13 defining the pockets also provides an increased surface for each tube so as to facilitate the conduction of the heat away from the tube. It will be obvious that owing to the inclination of the ribs 13 during'forward motion of the vehicle the air. is deflected toward opposite sides of the tubes, thereby insuring the rapid conduction 'of heat away from the tubes. These tubes, being of more or'less expansible construction will expand somewhat in the eventthat the water should freeze during periods of cold weather the pockets expanding slightly, the sides 11 and 12of the pockets also separating slightly to permit expansion of the congealing water thereby preventing damage to the tubes themselves. It will be obvious that since the joints of the tubesare located at the front and rear of the radiator, access to the joints for resoldering may be readily obtained. Other uses and advantages will readily occur to those skilled in the art to which this invention appertains.

The foregoing description and the drawings have reference to what may be considered the preferred or approved form of my invention. It is to be understood that I may make such changes in construction and arrangement' and combination of parts, materials, dimensions, etc., as may prove expedient and fall within the scope of the appended claim.

Having thus described my invention what I claim as new and desire to secure by Letters Patent'is:

A radiator tube, comprising closely related companion strips, each strip having portions at regular intervals bent outwardly to form hollow ribs which project laterally at a right angle and which incline in the direction of the width of the strip and tube,

the ribs on one side of the tube inclining in an opposite direction to the ribs on the other side of the tube, and closingstrips secured between and connecting the edges of the tube strips, each closing strip being doubled upon itself and having parts of the folded portions out and bent laterally in-opposite directions to close the ends of the hollow ribs.

In testimony whereof I affix my signature in presence of two witnesses.

CLARENCE S. ANDERSON.

Witnesses:

HENNING PEARSON, I. A. FLAoK. 

